handjoob: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/handjoob - from package: weboob

You may install the required package with command apt-get install {package}

Error in other languages:
handjoob: bevel nie gevind nie
handjoob: comandă negăsită
handjoob: comando não encontrado
handjoob: commande introuvable
handjoob: command not found
handjoob: käsku ei ole
handjoob: không tìm thấy lệnh
handjoob: komanda nerasta
handjoob: Kommando nicht gefunden.
handjoob: kommandot finns inte
handjoob: komut yok
handjoob: nie znaleziono polecenia
handjoob: níor aimsíodh an t-ordú
handjoob: no se encontró la orden
handjoob: no s'ha trobat l'ordre
handjoob: opdracht niet gevonden
handjoob: parancs nem található
handjoob: perintah tidak ditemukan
handjoob: príkaz nenájdený
handjoob: příkaz nenalezen
handjoob: команда не найдена
handjoob: командата не е открита
handjoob: 命令找不到
handjoob: コマンドが見つかりません